Open System Architect (OSA) is an application used for modelling a system. OSA
currently supports data modelling (physical and logical) with UML in the works.
The unique thing about OSA is that it is an Open Source product
licensed under the General Public License (GPL). The free factor makes OSA particularly
interesting for students but OSA is powerful enough to compare favourably with
products costing thousands of dollars.

OSA is sponsored by CodeByDesign (the
original developer of OSA) and by Source Forge (they host the community
collaboration environment for OSA).

ERD (Logical & Physical)

ERD supports inheritance

ERD validation

UML in the works

SQL editor

workspace/project environment

cross-platform

cross-database

open source/open standards

GPL (free)

... and much more

Contribute

Want to get involved in a powerful and successful open source project? This is
it! Development, documentation, artwork, and bug reports are all needed.
Consider contributing by going to the OSA source forge site
and using the, fun, community based collaboration environment. If you just want
to make a suggestion you are in luck - we want to hear it. Please send
suggestions to Peter Harvey.